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Contract OI history

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May 21, 2027 EXPIRATION

U $50.00 Put

U270521P00050000

Latest saved OI986Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
U $50.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0385190 2026-10-02: 1,038 OI2026-10-05: 1,038 OI2026-10-06: 1,038 OI2026-10-07: 987 OI2026-10-08: 987 OI2026-10-09: 981 OI2026-10-14: 981 OI2026-10-15: 981 OI2026-10-16: 981 OI2026-10-21: 981 OI2026-10-23: 986 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026986+5
Oct 21, 2026Viewing9810
Oct 16, 20269810
Oct 15, 20269810
Oct 14, 20269810
Oct 09, 2026981-6
Oct 08, 20269870
Oct 07, 2026987-51
Oct 06, 20261,0380
Oct 05, 20261,0380
Oct 02, 20261,038No prior observation